scrolling-static-text

This widget displays a block of non-editable text that wraps at spaces
as needed to contain the text within the width of the widget, just as
an ordinary static-text
widget does. In addition, it will scroll vertically when not all of
the text will fit within the height of the widget. A vertical
scrollbar appears only when scrolling is needed. The widget can be
scrolled as usual with the mouse on the scrollbar or with the Page Up,
Page Down, and up and down arrow keys. This widget always uses the
double-buffered property for
smooth scrolling and updating.